18677480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10859}}^1$

素因数の和:10913

約数の個数: 32

約数和(自身を含む): 43005600

約数和(自身を除く): 24328120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 10859, 21718, 43436, 54295, 86872, 108590, 217180, 434360, 466937, 933874, 1867748, 2334685, 3735496, 4669370, 9338740, 18677480]

約数ペア:

[(1, 18677480), (2, 9338740), (4, 4669370), (5, 3735496), (8, 2334685), (10, 1867748), (20, 933874), (40, 466937), (43, 434360), (86, 217180), (172, 108590), (215, 86872), (344, 54295), (430, 43436), (860, 21718), (1720, 10859)]